This week, Google reiterated that Messages with RCS is its primary communication service for consumers. Messages 3.9 is rolling out today with work on spam protection and more types of file sharing, including calendar and documents.

About APK Insight: In this ‘APK Insight’ post, we’ve decompiled the latest version of an application that Google uploaded to the Play Store. When we decompile these files (called APKs, in the case of Android apps), we’re able to see various lines of code within that hint at possible future features. Keep in mind that Google may or may not ever ship these features, and our interpretation of what they are may be imperfect. We’ll try to enable those that are closer to being finished, however, to show you how they’ll look in the case that they do ship. With that in mind, read on.

Spam protection

Like the Google Phone app, Messages is now working on spam protection that involves sending “some data about your messages” to Google for analysis. However, Google notes that it will not be reading the “content” of the text message.

Meanwhile, sharing other file types is also in development, with a handful of icons found in Messages 3.9. This includes documents, spreadsheets, and presentations. A related change sees attachments be downloaded and saved rather than the existing action of sharing.